# Overview The Vanila protocol is a decentralised exchange bringing expirable future contracts in Defi. In DeFi, only perpetual futures exist. But since funding rates are unpredictable, traders do not have control over their costs. The vanila protocol brings expirable futures to DeFi to allow traders to set their costs upfront. More information on perpetual and expirable futures could be found in the next [section](https://vanilaprotocol.gitbook.io/vanila/futures-contracts-1/futures-contracts). The vanila protocol hedges the positions taken by the traders to remove any impermanent losses for the liquidity providers and ensure a safe settlement for everyone. More information could be found in this [section](https://vanilaprotocol.gitbook.io/vanila/vanila-protocol/hedging). You can get in touch with us at . {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://vanilaprotocol.gitbook.io/vanila/master.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.